Nathan e



(No Model,)

N. R. LYMAN.

MACHINE FOR MAKING PRINTERS LEADS.

Patented Apr. 7, 1885.

Irv/911151",

Wi ITLE'EEEE.

UNITED SiIATE S PATENT OFFICE.

NATHAN R. LYMAN, OF CHICAGO, ILLINOIS, ASSIGNOR oroNn-IIALr TO JOSEPH P.ELLAGOTT, or SAME PLACE.

MACHINE FOR MAKING PRINTERS LEADS.

SPECIFICATION forming part of Letters Patent No. 315,0 5, dated April 7,1885.

Application filed December 18, 1882. (No model.)

To all whom it may concern."

Be it known that I, NATHAN R. LYMAN, a citizen of the United States,residing at Ohicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Machines for MakingPrinters Leads, which are set forth in the following specification,reference being made to the accompanying drawings, in which- Figure 1 isa front view of a machine embodying my improvements. Fig. 2 shows on anenlarged scale the mold-roller and the roller coacting therewith, theformer roller being shown-in edge view as to its right-hand half and inaxial section as to its left-hand half, and the latter roller being insimilar section and broken away beyond the points of nearestjuxtaposition of the two rollers. Fig. 3 shows a plan section of thefunnel, taken on the line '00 as, Fig. 1, looking upward and Fig. 4 is aplan section on the line 3 y, Fig. 1, broken away, showing the dovetailslide which holds the funnel against lateral displacement, and atthesame time allows of its vertical adjustment. 1

My invention relates to a machine by means of which lead is formed bythe aid of a roller and'a band. I

- The object of my invention is to provide means whereby a continuousstrip or ribbon of lead may be made. I

4 In the drawings, which illustrate one way in which my invention may becarried out, A represents. a roller provided with a central groove, a,in the face thereof, between which groove and a band, E, hereinafterdescribed, covering at this point the face of a roller, B, the fusedmetal is formed into a ribbon. On each side of the central groove, a, asmaller groove, a, is turned, and outside of these grooves a, on theface of the roller A, are turned rabbets a O is a pulley. This pulleyhas a plain face, except near each edge, where'it has a narrow annularflange, c, which corresponds with the annular rabbet (L The roller B hasa plain face, except for the presence of the similar flanges, b, thepulley O and roller 13 being counterparts throughout.- These flanges cand interlock the rollers A and B and keep them in perfect alignment.

D is a funnel, made of wood, cl, inside, and

pulley G and of metal, d, outside, this metal, however, forming the solematerial of the extreme tip of the funnel,to insure durability. Thisfunnel slides up and down when occasion requires on a vertical standard,D, being dovetailed thereto, as

shown in Fig. 4., for thepurpose of permitting vertical adjustmentwithout lateral displacement. The object of thus adapting the funnel tobe vertically adj ustable is to admit of the sub stitution for theroller A of another roller havingagroove, a, of difl'erent depth, thusproviding for the making of leads of different thicknesses.- The metal,(1, formingthe outside of the funnel is provided with flanges d whichfit into the grooves a, and thus secure a more perfect relativealignment of the funnel D and the mold roller A than would be attainablesimply by the use of the dovetail slide shown in Fig. 4, the object ofthis nice adjustment being to deliver the' molten metal from the funneldirectly and wholly into the groove a, and not to either side thereof,where it would I b, in conjunction with the rabbets a, serveto not onlybe itself wasted, but would also clogv the machine.

A steel band, E, passing around the roller B and pulley O and whollyunder the roller A, serves to transmit power from the pulley G to theroller B, and said pulley 0 may be revolved by any suitable appliance orpower. But this band E is more especially intended for the purpose ofconfining the fused metal in the groove on after it has been rolledbetween'the rollers A and B until such metal shall have cooled, thecombination of the band be supported in part, as shown, by the stand-1rd D through the funnel D. Motion is com municated to the machine byany suitable 1 driving mechanism connected withthe shaft of the pulleyO. The outer face of the band E and the bottom of the groove'a. arecovered with cloth, paper, or other nonconducting material, a, toprevent the too rapid chilling of the fused metal, such as would resultfromimmediate contact with the metallic surfaces of theroller A and bandE. The obj eet of malting the inside of the funnel of wood is also toprevent chilling of the lead prematurely.

The operation of the above-described embodimentof myinvention may besummarized asfollows: Fused lead alloy-such as is in common use formaking printers leads-runs in a continuous stream from the furnace-intothe'funnel; thence between the rollerA and band-covered roller B andwholly within the groove a,which groove regulates atthispoi n-tthethickness as well as width of the ribbon in process of formation, thenceunder the roller A to the points of the roller A and pulley O which arein nearest juxtaposition, duringwhich period the band E retains thegradually cooling metal in the shapeit acquired' by its passage betweenthe rollers A and Bat their points of nearest juxtaposition; thence thelead, which by this time has solidified, is discharged from the machinein a continuous ribbon. Throughout itswhole passage-from its entranceinto the funnel to its discharge from the machine-the-lead isprotectedfromtoo rapid chilling by the non conducting properties of the surfaceswith which it comes in contact.

I claim as my invention and desire to secure by Letters Patent- 1. Thecombination, as a mold, of a band and a roller having a groove, a;substantially as set forth.

2.. The combination of a band and a roller provided with a groove, (1,and a non-conducting surface, substantially as set forth.

3; A band and aroller having a groove, a, when arranged to form a mold,in combination with a roller, B, substantially as set forth.

4:. The combination of a band, a roller provided with a groove, a, and anon-conducting surface, and a roller, B, substantially as set forth.

5 5'. A band and a roller provided with'a groove, a, in combination witha funnel having a passage communicating with" the passage formed by'thegrooved roller and band, substantially as setforth.

6. The combination of a band, a roller provided with a groove, 0:, and anon-conducting surface, and a funnel, substantially as set forth.

7. A band and a roller provided with a groove, a, in combination with aroller, B, and a funnel havingapassage communicating with the passageformed by the grooved roller and band, substantially as set forth.

8. The combination of a band, a roller provided with a groove, a, and anon-conducting surface, a roller, B, and afunnel, substantially as setforth.

9. The combination of a band provided with a nonconducting surface anda:- roller" provided with a groove,a, substantially as set forth.

10..Fhe combination of a band. providedv with a non-conducting surfaceand: a roller provided with a groove, a, and a non-coir ducting surface,substantially asset forth 11. The combination of a band provided with anon-conducting surface, a roller" provided withagroove, or, and aroller, B, sub stantially as set forth.

I2. The combination of 'a band provided with anon-conducting. surface, aroller provided with a groove, (1', and anon-conducting surface, and aroller, B, substantially-"as set forth. 1

13. The combination of a band: provided with a" non-conducting surface,a roller provided with a groove, a, and a funnel, substantially assetforth.

14'. Thecombination of a band provided with a non-conducting surface,a-roller provided with a groove, a, and anon-conducting surface, and afunnel, substantially as setforth.

15. The combination of a band provided with a non-conducting surface, aroller-provided with a groove, a, a roller, B'-,and-a funnel,substantially as set forth 16. The combination of a band provided with anon-conducting surface, a roller. provided with a groove, a, andanon-conducting.

surface, a roller, B, and a funnel, substan .tially as set forth.

17. The coihb'nation of a band, arollerpro= vided with a-groove, a, andafunnel provided with a non-c'onducting surface, substantially I as setforth.

18. The combination of aband, a rollerprm vided with a groove, a, and anon-conducting surface, and a fulnnel provided with a. nonconductingsurface, substantially asset forth. i 19. The combination of aband,a-roller provided with a groove, a, a roller, B and afun- :nel' providewitha non-conducting surface,

substantially as set forth.

20. The combination of a band, a roller pro"- vided with a groove, a,and a non-conducting surface, a'roller, B, and a funnel provided IIOwith a non-conducting surface, substantially 23. The combination of aband provided with a non-conducting surface, a roller provided with agroove, a, a roller, B, and afun- 15 ml provided with a non-conductingsurface, substantially as set forth.

24. The combination of a band provided with a non-conducting surface, aroller provided with a groove, a, and a non-conducting 20 surface, aroller, B, and a funnel provided with a non-conducting surface,substantially as set forth.

NATHAN R. LYMAN.

Witnesses:

GEO. R. CUTLER, E. G. CRAWFORD.

